A device for spraying a uniform coating on the surface of a silicon-carbon rod

Abstract

This utility model relates to the field of silicon carbide rod spraying technology, and discloses a device for uniformly spraying a coating onto the surface of a silicon carbide rod. The device includes a processing box, an electric push rod fixedly connected to the inside of the left side of the processing box, a push plate fixedly connected to the output end of the electric push rod, a third motor fixedly connected to the inner wall of the right side of the processing box, a rotating disk fixedly connected to the output end of the third motor, and a connecting plate fixedly connected to the outer wall of the rotating disk opposite to the push plate. In this utility model, a second motor drives a second driving gear to rotate, causing a second driven gear to rotate. Through the sliding connection between the arc-shaped groove and the limiting post, the arc-shaped plate slides within the push plate and the rotating disk, realizing the rotation of the silicon carbide rod and allowing the coating to uniformly cover its surface. Furthermore, the third motor drives the rotating disk to rotate, causing the silicon carbide rod to rotate at multiple angles, further ensuring a more comprehensive and uniform coating, effectively improving the surface coating quality of the silicon carbide rod and meeting usage requirements.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide rod spraying technology, specifically to a device for spraying a uniform coating onto the surface of a silicon carbide rod. Background Technology

[0002] Silicon carbide rods are rod-shaped or tubular non-metallic high-temperature electric heating elements made from high-purity green hexagonal silicon carbide as the main raw material, processed into blanks according to a certain material ratio, and then sintered at a high temperature of 2200℃ through siliconization and recrystallization. The normal operating temperature in an oxidizing atmosphere can reach 1450℃, and the continuous operation can reach 2000 hours.

[0003] Silicon carbide rods are refractory and high-temperature resistant electric heating elements made primarily of high-purity silicon carbide. They are widely used in numerous fields such as metal smelting, steel heat treatment, metallurgical mineral processing, building materials and ceramics, electric heating industry, and chemical industry.267 For example, in metal smelting, silicon carbide rods are used to provide a high-temperature environment to melt metals; in the building materials and ceramics field, they are used for high-temperature heating during the ceramic firing process.

[0004] It is difficult to evenly cover the surface of silicon carbide rods with coating. Some areas may have excessively thick coating, which not only wastes coating but may also cause damage to the silicon carbide rods due to localized overheating during use; while some areas may have insufficient coating or no coating at all, which will make the surface of the silicon carbide rods less protective and more susceptible to oxidation, corrosion and other damage, thus shortening its service life.

[0005] To address the aforementioned issues, a device for spraying a uniform coating onto the surface of a silicon carbide rod is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a device for uniformly coating the surface of silicon carbide rods, solving the problem in the prior art where the coating is difficult to evenly cover the surface of the silicon carbide rod. In some areas, the coating may be too thick, which not only wastes coating but may also cause the silicon carbide rod to be damaged by localized overheating during use; while in other areas, the coating may be too thin or even not covered, resulting in insufficient surface protection for the silicon carbide rod, making it susceptible to oxidation, corrosion, and other damage, thus shortening its service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for uniformly coating a silicon carbide rod surface, comprising a processing box, an electric push rod fixedly connected to the inside of the left side of the processing box, a push plate fixedly connected to the output end of the electric push rod, a third motor fixedly connected to the inner wall of the right side of the processing box, a rotating disk fixedly connected to the output end of the third motor, a connecting plate fixedly connected to the outer wall of the rotating disk opposite to the push plate, a second motor fixedly connected to the top of the connecting plate, a second driving gear fixedly connected to the output end of the second motor, a second driven gear meshing with the outer wall of the second driving gear, a uniformly distributed arc-shaped groove formed on the outer wall of the second driven gear, a uniformly distributed arc-shaped plate slidably connected inside the push plate and the rotating disk, a limiting post fixedly connected to one end of the arc-shaped plate, and the limiting post slidably connected to the arc-shaped groove, and a stirring assembly provided on the top of the processing box.

[0008] By adopting the above technical solution, the arc-shaped plate is limited and controlled by the limiting column. The limiting column moves within the inner wall of the arc-shaped groove. The arc-shaped plate on the right side is different from that on the left side. One fixes the workpiece, and the other cleans the workpiece.

[0009] As a further description of the above technical solution: the stirring assembly includes a material cylinder, which is fixedly connected to the top left side of the processing box, and a first motor is fixedly connected to the top of the material cylinder.

[0010] By adopting the above technical solution, the first motor is fixed by the fixing frame on the barrel.

[0011] As a further description of the above technical solution: a pump body is fixedly connected to the liquid outlet end of the material cylinder, a connecting pipe is fixedly connected to the right side of the pump body, and a spray pipe is fixedly connected to one end of the connecting pipe.

[0012] By adopting the above technical solution, the coating is sprayed through a spray pipe.

[0013] As a further description of the above technical solution: a filter box is connected to the bottom of the processing box, and an exhaust fan is fixedly connected to the bottom of the filter box.

[0014] By adopting the above technical solution, the service life of the exhaust fan can be improved through the filter box.

[0015] As a further description of the above technical solution: a rotating column is fixedly connected to the output end of the first motor, and a rotating disk is fixedly connected to the bottom of the rotating column.

[0016] By adopting the above technical solution, the first motor drives the rotating column to rotate, which in turn drives the rotating disk to rotate.

[0017] As a further description of the above technical solution: a large gear is provided on the top of the rotating disk, and the large gear is rotatably connected to the outer ring of the rotating column. A small gear is meshed with the outer ring of the large gear, and a uniformly distributed scraper is fixedly connected to the side of the rotating disk opposite to the large gear.

[0018] By adopting the above technical solution, the coating is cleaned from the inner wall of the barrel by a scraper, thus preventing clumping.

[0019] As a further description of the above technical solution: a connecting rod is fixedly connected inside the pinion, and the connecting rod is rotatably connected to the rotating disk, and a first driving gear is fixedly connected to the bottom of the connecting rod.

[0020] By adopting the above technical solution, the first driving gear is rotated by the connecting rod.

[0021] As a further description of the above technical solution: the outer ring of the first driving gear is meshed with a first driven gear, and the first driven gear is rotatably connected to the rotating disk, and a stirring column is fixedly connected to the bottom of the first driven gear.

[0022] By adopting the above technical solution, the first driving gear drives the first driven gear to rotate, thereby driving the stirring column to rotate.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. This utility model provides a device for uniformly coating a silicon carbide rod surface. First, a second motor drives a second driving gear to rotate, causing a second driven gear to rotate. Through a sliding connection between an arc-shaped groove and a limiting post, an arc-shaped plate slides within a pushing disk and a rotating disk, enabling the silicon carbide rod to rotate and allowing the coating to uniformly cover its surface. Furthermore, a third motor drives the rotating disk to rotate, causing the silicon carbide rod to rotate at multiple angles, further ensuring a more comprehensive and uniform coating, effectively improving the surface coating quality of the silicon carbide rod and meeting usage requirements.

[0025] 2. This utility model provides a device for uniformly coating a silicon carbide rod surface. After the first motor is started, it drives a rotating column, a rotating disk, and a scraper to rotate, scraping the coating at the bottom of the cylinder to prevent sedimentation. Simultaneously, the rotating column drives a large gear, which, via a small gear, a connecting rod, and a first driving gear, drives a first driven gear and a stirring column to rotate, stirring the coating to ensure uniform mixing and stable coating results. Furthermore, an electric push rod moves the pushing disk to adjust the position of the silicon carbide rod, and the left-side arc-shaped plate can clean the workpiece and retracts during spraying, ensuring normal equipment operation and improving the overall efficiency and quality of the spraying work. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall cross-section of the present invention;

[0028] Figure 3 This is a cross-sectional structural diagram of the material cylinder of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the large gear of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the electric actuator of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the third motor of this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the second driving gear of this utility model.

[0033] In the diagram: 1. Processing box; 2. Material cylinder; 3. Filter box; 4. Exhaust fan; 5. Pump body; 6. Connecting pipe; 7. Spray pipe; 8. First motor; 9. Rotating column; 10. Large gear; 11. Rotating disk; 12. Small gear; 13. Connecting rod; 14. First driving gear; 15. First driven gear; 16. Stirring column; 17. Scraper; 18. Electric push rod; 19. Pushing disk; 20. Connecting plate; 21. Second motor; 22. Second driven gear; 23. Third motor; 24. Rotating disk; 25. Second driving gear; 26. Arc groove; 27. Limiting column; 28. Arc plate. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0036] Reference Figure 1This utility model discloses a device for uniformly coating a silicon carbide rod surface, comprising a processing box 1. An electric push rod 18 is fixedly connected to the inside of the left side of the processing box 1. The electric push rod 18 has precise extension and retraction control capabilities, and its output end is firmly fixedly connected to a push plate 19. The electric push rod 18 plays a crucial role; through its extension and retraction, it pushes the push plate 19 to move back and forth, thereby flexibly adjusting the position of the silicon carbide rod placed between the push plate 19 and the rotating plate 24 to meet the positional requirements of different coating processes. The electric push rod 18 moves the push plate 19 and the arc-shaped plate 28 on the left side. The arc-shaped plate 28 contains a cleaning pad for cleaning the workpiece. The output end of the electric push rod 18 is fixedly connected to the push plate 19. A third motor 23 is fixedly connected to the inner wall of the right side of the processing box 1. The output end of the third motor 23 is fixedly connected to the rotating plate 24. When the third motor 23 is started, it drives the rotating plate 24 to rotate stably. The rotation of the rotating disk 24 plays a key role in the multi-angle spraying of silicon carbide rods. It enables the silicon carbide rods to rotate in all directions during the spraying process, thereby ensuring that the coating can be evenly covered on the entire surface of the silicon carbide rods, which greatly improves the uniformity and quality of the coating.

[0037] Reference Figure 2 , Figures 5-7 A connecting plate 20 is fixedly connected to the outer wall of the rotating disk 24 and the pushing disk 19. A second motor 21 is fixedly connected to the top of the connecting plate 20. A second driving gear 25 is fixedly connected to the output end of the second motor 21. A second driven gear 22 is meshed with the outer wall of the second driving gear 25. When the second driving gear 25 rotates, it will drive the second driven gear 22 to rotate synchronously through the interaction force between the teeth. The outer wall of the second driven gear 22 is provided with evenly distributed arc-shaped grooves 26. An evenly distributed arc-shaped plate 28 is slidably connected inside the pushing disk 19 and the rotating disk 24. A limit post 27 is fixedly connected to one end of the arc-shaped plate 28, and the limit post 27 is slidably connected to the arc-shaped groove 26. Since the limit post 27 is fixed on the arc-shaped plate 28, the arc-shaped plate 28 will slide inside the pushing disk 19 and the rotating disk 24. The sliding of the arc plate 28 can drive the silicon carbide rod placed between it to rotate. In this way, the silicon carbide rod can rotate continuously during the spraying process, ensuring that the coating is evenly sprayed on its surface and effectively avoiding uneven coating thickness.

[0038] Reference Figure 3 and Figure 4The processing box 1 is equipped with a stirring assembly on its top. The stirring assembly includes a material cylinder 2, which is fixedly connected to the top left side of the processing box 1. A first motor 8 is fixedly connected to the top of the material cylinder 2. The material cylinder 2 is securely fixedly connected to the top left side of the processing box 1 and is used to store paint. The first motor 8 is fixedly connected to the top of the material cylinder 2. The first motor 8 serves as the power source for the mixing assembly. When it starts, its output end drives the rotating column 9 to rotate at high speed. The liquid outlet end of the material cylinder 2 is fixedly connected to the pump body 5, and the right side of the pump body 5 is fixedly connected to the connecting pipe 6. One end of the connecting pipe 6 is fixedly connected to the spray pipe 7. The bottom of the processing box 1 is connected to the filter box 3, and the bottom of the filter box 3 is fixedly connected to the exhaust fan 4. The exhaust fan 4 generates a strong suction force to draw the exhaust gas generated during the spraying process in the processing box 1 into the filter box 3. After being filtered by the filter box 3, the purified gas is discharged into the environment, thereby achieving the purpose of environmentally friendly spraying. The airflow of the exhaust fan 4 is adjusted according to different conditions. The output end of the first motor 8 is fixedly connected to the rotating column 9, and the bottom of the rotating column 9 is fixedly connected to the rotating disk 11. The top of the rotating disk 11 is equipped with a large gear 10, and the large gear 10 is rotatably connected to the outer ring of the rotating column 9. During the rotation of the rotating column 9, it drives the large gear 10, which is rotatably connected to its outer ring, to rotate. The outer ring of the large gear 10 meshes with the small gear 12, and the rotation of the large gear 10 drives the small gear 12 to rotate. A connecting rod 13 is fixedly connected inside the small gear 12, and the connecting rod 13 is rotatably connected to the rotating disk 11. A first driving gear 14 is fixedly connected to the bottom of the connecting rod 13. When the small gear 12 rotates, it drives the first driving gear 14 to rotate via the connecting rod 13. The outer ring of the large gear 10 meshes with the small gear 12. A uniformly distributed scraper 17 is fixedly connected to the rotating disk 11 on the side opposite to the large gear 10. When the rotating disk 11 rotates, the scraper 17 rotates accordingly, scraping the paint at the bottom of the material cylinder 2. During paint storage, due to factors such as gravity, paint is prone to sedimentation. The scraping action of the scraper 17 effectively prevents paint sedimentation, ensuring that the paint remains in a uniformly mixed state. A connecting rod 13 is fixedly connected inside the pinion 12, and the connecting rod 13 is rotatably connected to the rotating disk 11. A first driving gear 14 is fixedly connected to the bottom of the connecting rod 13. A first driven gear 15 is meshed with the outer ring of the first driving gear 14, and the first driven gear 15 is rotatably connected to the rotating disk 11. As the first driven gear 15 rotates, the stirring column 16 rotates at high speed inside the material cylinder 2, thoroughly stirring the paint inside the material cylinder 2. Through the combined action of the scraping action of the scraper 17 and the stirring action of the stirring column 16, the paint inside the material cylinder 2 can be kept in a uniformly mixed state, providing a stable quality paint for subsequent spraying work. The stirring column 16 is fixedly connected to the bottom of the first driven gear 15.

[0039] Working principle: The silicon carbide rod to be coated is placed between the push plate 19 and the rotating plate 24. The arc plate 28 on the right side limits and fixes the silicon carbide rod. An appropriate amount of coating is added into the material cylinder 2. The first motor 8 is started, and the output end of the first motor 8 drives the rotating column 9 to rotate. The rotating column 9 drives the rotating plate 11 to rotate, and the scraper 17 on the rotating plate 11 rotates accordingly to scrape the coating at the bottom of the material cylinder 2 to prevent the coating from settling. At the same time, the rotating column 9 drives the large gear 10 to rotate. The large gear 10 meshes with the small gear 12, causing the small gear 12 to rotate. The small gear 12 drives the first driving gear 14 to rotate through the connecting rod 13. The first driving gear 14 meshes with the first driven gear 15, which in turn drives the stirring column 16 at the bottom of the first driven gear 15 to rotate, stirring the coating in the material cylinder 2 to ensure uniform mixing. The second motor 21 is started, and the second driving gear 25 at the output end of the second motor 21 rotates. The second driven gear 22 meshing with the second driving gear 25 rotates accordingly. The arc-shaped groove 26 on the outer wall of the second driven gear 22 is slidably connected to the limiting post 27. When the second driven gear 22 rotates, it drives the limiting post 27 to move. The limiting post 27 is fixed on the arc-shaped plate 28, so that the arc-shaped plate 28 slides in the pushing disk 19 and the rotating disk 24 to realize the rotation of the silicon carbide rod, ensuring the uniformity of the coating during spraying and fixing the silicon carbide rod. The arc-shaped plate 28 on the left side is larger than the arc-shaped plate 28 on the right side. The pushing disk 19 is moved by the electric push rod 18. The fixed silicon carbide rod is rotated by the third motor 23. The workpiece is cleaned by the arc-shaped plate 28 on the left side. During cleaning, impurities are extracted by the filter box 3 and the exhaust fan 4. During spraying, the exhaust force of the exhaust fan 4 is reduced and retracted during spraying. The paint in the material cylinder 2 enters the spray pipe 7 through the connecting pipe 6 under the action of the pump body 5 and is sprayed onto the surface of the silicon carbide rod from the spray pipe 7. During the rotation of the silicon carbide rod, the coating is evenly covered on its surface. The output end of the third motor 23 drives the rotating disk 24 to rotate, enabling the silicon carbide rod to rotate at multiple angles and achieve a more comprehensive and uniform spraying effect.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for uniformly coating a silicon carbide rod surface, comprising a processing box (1), characterized in that: An electric push rod (18) is fixedly connected to the inside of the left side of the processing box (1). A push plate (19) is fixedly connected to the output end of the electric push rod (18). A third motor (23) is fixedly connected to the inner wall of the right side of the processing box (1). A rotating disk (24) is fixedly connected to the output end of the third motor (23). A connecting plate (20) is fixedly connected to the outer wall of the rotating disk (24) opposite to the push plate (19). A second motor (21) is fixedly connected to the top of the connecting plate (20). The second motor (21) outputs... The end is fixedly connected to a second driving gear (25), and the outer wall of the second driving gear (25) is meshed with a second driven gear (22). The outer wall of the second driven gear (22) is provided with evenly distributed arc-shaped grooves (26). The push disk (19) and the rotating disk (24) are slidably connected to an evenly distributed arc-shaped plate (28). One end of the arc-shaped plate (28) is fixedly connected to a limit post (27), and the limit post (27) is slidably connected to the arc-shaped groove (26). The top of the processing box (1) is provided with a stirring assembly.

2. The device for uniformly coating a silicon carbide rod surface according to claim 1, characterized in that: The stirring assembly includes a material cylinder (2), which is fixedly connected to the top left side of the processing box (1), and a first motor (8) is fixedly connected to the top of the material cylinder (2).

3. The device for uniformly coating a silicon carbide rod surface according to claim 2, characterized in that: The liquid outlet end of the feed cylinder (2) is fixedly connected to a pump body (5), and a connecting pipe (6) is fixedly connected to the right side of the pump body (5). A spray pipe (7) is fixedly connected to one end of the connecting pipe (6).

4. The device for uniformly coating a silicon carbide rod surface according to claim 1, characterized in that: The bottom of the processing box (1) is connected to a filter box (3), and the bottom of the filter box (3) is fixedly connected to an exhaust fan (4).

5. The device for uniformly coating a silicon carbide rod surface according to claim 2, characterized in that: The output end of the first motor (8) is fixedly connected to a rotating column (9), and the bottom of the rotating column (9) is fixedly connected to a rotating disk (11).

6. The device for uniformly coating a silicon carbide rod surface according to claim 5, characterized in that: The top of the rotating disk (11) is provided with a large gear (10), and the large gear (10) is rotatably connected to the outer ring of the rotating column (9). The outer ring of the large gear (10) is meshed with a small gear (12). The rotating disk (11) and the side opposite to the large gear (10) are fixedly connected with evenly distributed scrapers (17).

7. The device for uniformly coating a silicon carbide rod surface according to claim 6, characterized in that: The small gear (12) is fixedly connected to a connecting rod (13), and the connecting rod (13) is rotatably connected to the rotating disk (11). The bottom of the connecting rod (13) is fixedly connected to a first driving gear (14).

8. The device for uniformly coating a silicon carbide rod surface according to claim 7, characterized in that: The outer ring of the first driving gear (14) is meshed with the first driven gear (15), and the first driven gear (15) is rotatably connected to the rotating disk (11). The bottom of the first driven gear (15) is fixedly connected with a stirring column (16).

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